HipChatHandler: combine batch records and send as one

src/Monolog/Handler/HipChatHandler.php

@@ -150,4 +150,70 @@ class HipChatHandler extends SocketHandler
         $this->closeSocket();
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function handleBatch(array $records)
+    {
+        if (count($records) == 0) {
+            return true;
+        }
+
+        $batchRecord = $this->combineRecords($records);
+
+        if (!$this->isHandling($batchRecord)) {
+            return false;
+        }
+
+        $this->write($batchRecord);
+
+        return false === $this->bubble;
+    }
+
+    /**
+     * Combines multiple records into one. Error level of the combined record
+     * will be the highest level from the given records. Datetime will be taken
+     * from the first record.
+     *
+     * @param $records
+     * @return array
+     */
+    private function combineRecords($records)
+    {
+        $messages = array();
+        $formattedMessages = array();
+        $level = 0;
+        $levelName = null;
+        $datetime = null;
+
+        foreach ($records as $record) {
+
+            $record = $this->processRecord($record);
+            $record['formatted'] = $this->getFormatter()->format($record);
+
+            $messages[] = $record['message'];
+            $formattedMessages[] = $record['formatted'];
+
+            if ($record['level'] > $level) {
+                $level = $record['level'];
+                $levelName = $record['level_name'];
+            }
+
+            if (null == $datetime) {
+                $datetime = $record['datetime'];
+            }
+        }
+
+        $batchRecord = array(
+            'message' => implode(PHP_EOL, $messages),
+            'formatted' => implode('', $formattedMessages),
+            'level' => $level,
+            'level_name' => $levelName,
+            'datetime' => $datetime,
+            'context' => array(),
+            'extra' => array(),
+        );
+
+        return $batchRecord;
+    }
 }